#4259D5#4259D5

#4259D5 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.0% C 0.191 H 270.3°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#4259D5
RGB	rgb(66, 89, 213)
HSL	hsl(231, 64%, 55%)
HSV	hsv(231, 69%, 84%)
CMYK	cmyk(69%, 58.2%, 0%, 16.5%)
CIE-LAB	lab(42.92, 32.23, -66.40)
CIE-LCH	lch(42.92, 73.81, 295.89°)
OKLab	oklab(52.04% 0.0011 -0.1914)
OKLCH	oklch(52.04% 0.191 270.3)
XYZ	xyz(17.8253, 13.1054, 64.5281)
Luminance	0.1311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259D5 #D5BE42

analogous

#42A3D5 #4259D5 #7442D5

triadic

#4259D5 #D54259 #59D542

tetradic

#4259D5 #D542A3 #D5BE42 #42D574

square

#4259D5 #D542A3 #D5BE42 #42D574

split-complementary

#4259D5 #D57442 #A3D542

monochromatic

#1C2C80 #283DB2 #4259D5 #7485E0 #A6B1EB

Accessibility & contrast

On white

5.80

#4259D5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#4259D5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259D5

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259D5	#FFFFFF	#000000	##FFFFFF
##4259D5	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD9

Deuteranopia (green-blind)

#005FD3

Tritanopia (blue-blind)

#00788E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4259d5;
/* rgb */ color: rgb(66, 89, 213);
/* oklch */ color: oklch(52.0% 0.191 270.3);

Tailwind

colors: {
  custom: {
    50: '#8887e3',
    500: '#4259d5',
    950: '#000000',
  },
}

SCSS

$custom: #4259d5;
$custom-light: #8887e3;
$custom-dark: #000000;

JSON

{
  "hex": "#4259d5",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 213
  },
  "hsl": {
    "h": 230.612,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.52041,
    "c": 0.19141,
    "h": 270.3
  },
  "luminance": 0.13107
}

Semantic roles & 50–950 ramp

primary

#4259D5

secondary

#D8CF9A

accent

#CD41E7

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #4259D5

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →